Curtain BLE - Support slider control mode single side

[iMicknl]

Current Situation

I combined two Switchbot Curtains 2 and I would like to have the same options as the app. To control both sides via a single cover entity, but also to control both sides separately via cover entities.

Currently I added both mac addresses with the Python code and the behavior is like this:

Left: this will move both sides (as left is the main switchbot in the switchbot app)
Right: this will move only the right side

It seems that there is no way to only move the left side seperately, while this is possible via the app. Is there any documentation how this works?

Logs

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Configuration

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Environment

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Additional Context

No response